Exhibit 10.48 EMPLOYMENT AGREEMENT THIS EMPLOYMENT AGREEMENT dated as of May 9, 2002 (this "Agreement") is entered into between Aspen Technology, Inc., a Delaware corporation ("Aspen") and Wayne Sim (the "Employee"). PRELIMINARY STATEMENT A. On the...Employment Agreement • September 30th, 2002 • Aspen Technology Inc /De/ • Services-computer programming services • Massachusetts
Exhibit 10.49 CHANGE IN CONTROL AGREEMENT AGREEMENT dated as of May 9, 2002 by and between Aspen Technology, Inc., a Delaware corporation (the "Company"), and Wayne Sim (the "Executive"). WHEREAS, the Company considers it essential to the best...Change in Control Agreement • September 30th, 2002 • Aspen Technology Inc /De/ • Services-computer programming services • Massachusetts
